Whats the length of side b in the figure below

`7.3``7.7``8.1``8.5`

Answer : D

Solution : You might not think that this is a trigonometry question at first. There's no ''sin,'' ''cos,'', or any other explicit tring function mentioned in the stem. And the triangle's not a right triangle. But trig is the tool you have to use answer this question. This is a case of ''solving a triangle'', that is, finding the length of one or more sides. <br> With the Law of Sines and the Law of Cosines and a calculator, you can solve almost any triangle. If you know any two angles - which of course means that you know all three - and one side, you can use the Law of Since to find the other two sides. If you know two sides and the angle between them - remember, it must be the angle between them - you can use the Law of Cosines to find the third side. In Example 6, what you're given is two angles and a side, so you'll use the Law of Sines, which says simply that the sines are proportional to the opposite sides. Here the side you're looking for BC, is opposite the `108^(@)`. The side you're given, AC, is opposite the unlabeled angle, which measures `180-108-38=34` degrees. Now you can set up the proportion. <br> `(BC)/(sin A)=(AC)/(sin B)` <br> `(BC)/(sin 108^(@))=(5.0)/(sin 34^(@))` <br> `BC = (5 sin 108^(@))/(sin 34^(@))~~ 8.5` <br> The answer is (D).

SOMEONE ASKED What is the length of missing side b in the figure below. A2 b2 c2.

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Up to 10 cash back Find the length of each side of this square. Let y 630 m and r 650 m the length inm of the unknown side x m b the tangent of c the sine of a What in keeping the length found in a fived by what factor would the length of the 630 m side have to be changed for the angles and y to be equal. B 218 cm.

We review their content and use your feedback to keep the quality high. Enter the length of any two sides and leave the side to be calculated blank. Substitute the two known sides into the Pythagorean theorems formula.

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A2 b2 c2. If the side of length 29 cm is the longest side then the missing side must be greater than 29 cm - 13 cm 16 cm If the missing side is the longest side then the missing side must be less than 29 cm 13 cm 42 cm Thus any length that is greater than 16 cm and less than 42. Sides a and b are the perpendicular sides and side c is the hypothenuse.

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Theyre both right triangles. Use a proportion to find the length of side x for the pair of smilar figures below. Since we know 2 sides of this triangle we will use the Pythagorean theorem to solve for x.

Where S is the side length of a square. Each of the 3 dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. Expert answeredsana08Points 6750 Log in for more information.

2 what is the length of side XZ. This calculator calculates for the length of one side of a right triangle given the length of the other two sides. CaptureJPG In the figure above what is the length of side AB.

Asked 220 days ago1062021 42711 PM. Up to 25 cash back What is length of missing side b in figure below. The human resource planning function serves to determine the number and type of employees needed to achieve the.

Experts are tested by Chegg as specialists in their subject area. HERE THE ANSWERS c2 a2 b2 a 7 c 13 132 72 b2 169 49 b2 b2 120 b 120 1095 Pythagorean theorem. Triangle 2 has x on the right side and 22cm on the bottom.

72 b2 132. Who are the experts. 600 m 900 m.